Add the sugar and water to the pot and mix well.
Secure the lid, close the pressure valve, and cook for 11 minutes at high pressure.
Quick-release pressure.
Add ghee, dry milk powder, cocoa powder, and cardamom to the pot and quickly mix until well combined. You may want to wear a glove to hold onto the hot pot as you stir – you will need to be fast!
Pour the mixture into a parchment-lined 8×8 pan/dish (you’ll need a spatula to scoop the mixture out of the pot and into the pan). Shake the pan gently so that the mixture spreads evenly.
Sprinkle the mini chocolate chips and gently shake the pan again to help them stick.
Let the chocolate burfi cool down on a wire rack for 25 to 30 minutes, then put it in the fridge for 2 hours to set.
Remove the chilled fudge, and slice it into medium-sized squares (I slice 5 rows by 5 rows and cut off any uneven edges). Then place the individual pieces on a plate. If you eat the mithai at this point, it will be soft and fudgy (my husband prefers it this way!). In order for it to taste more like burfi, you’ll want to let the sliced pieces sit out at room temperature for 6 to 8 hours (or overnight) to dry out. This completely changes the texture of the burfi so that it tastes more like burfi and not like fudge.
Once dry, you can store this burfi on the counter for up to one week. I prefer to eat this mithai at room temperature (so if you store in the fridge, make sure to bring it to room temp before eating).